|  | # SPDX-FileCopyrightText: 2020 Efabless Corporation | 
|  | # | 
|  | # Licensed under the Apache License, Version 2.0 (the "License"); | 
|  | # you may not use this file except in compliance with the License. | 
|  | # You may obtain a copy of the License at | 
|  | # | 
|  | #      http://www.apache.org/licenses/LICENSE-2.0 | 
|  | # | 
|  | # Unless required by applicable law or agreed to in writing, software | 
|  | # distributed under the License is distributed on an "AS IS" BASIS, | 
|  | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
|  | # See the License for the specific language governing permissions and | 
|  | # limitations under the License. | 
|  | # SPDX-License-Identifier: Apache-2.0 | 
|  |  | 
|  | set script_dir [file dirname [file normalize [info script]]] | 
|  |  | 
|  | set ::env(DESIGN_NAME) chip_io | 
|  |  | 
|  | set ::env(VERILOG_FILES) "\ | 
|  | $script_dir/../../verilog/rtl/defines.v\ | 
|  | $script_dir/../../verilog/rtl/pads.v\ | 
|  | $script_dir/../../verilog/rtl/mprj_io.v\ | 
|  | $script_dir/../../verilog/rtl/chip_io.v" | 
|  |  | 
|  | # The removal of this line is pending the IO verilog files being parsable by yosys... | 
|  | set ::env(VERILOG_FILES_BLACKBOX) "$script_dir/../../verilog/stubs/sky130_fd_io__top_xres4v2.v" | 
|  |  | 
|  | set ::env(DESIGN_IS_PADFRAME) 1 | 
|  | set ::env(SYNTH_FLAT_TOP) 1 | 
|  | set ::env(USE_GPIO_PADS) 1 | 
|  |  | 
|  |  | 
|  | set ::env(FP_SIZING) absolute | 
|  |  | 
|  | set fd [open "$script_dir/../chip_dimensions.txt" "r"] | 
|  | set ::env(DIE_AREA) [read $fd] | 
|  | close $fd | 
|  |  | 
|  |  | 
|  | set ::env(MAGIC_WRITE_FULL_LEF) 1 | 
|  |  | 
|  | set ::env(DIODE_INSERTION_STRATEGY) 0 | 
|  | set ::env(GLB_RT_TILES) 30 | 
|  | set ::env(GLB_RT_UNIDIRECTIONAL) 0 | 
|  | # set ::env(GLB_RT_ALLOW_CONGESTION) 1 | 
|  | # set ::env(GLB_RT_OVERFLOW_ITERS) 150 |